Swift Fundamentals

Swift basics and testable logic to demonstrate language foundations: optionals, protocols, generics, and unit tests.

What’s here

• MathUtils (pure functions with tests)
• StringUtils (optionals, extensions)
• Examples in main.swift

Run (web)

Use an online Swift runner. Paste main.swift into the editor together with MathUtils and StringUtils and run. Copy output below.

Sample Output

== Swift Fundamentals Demo ==
Add 2+3=5
Mul 4*5=20
Mean [1,2,3]=2.0
Hello, Deepthi!
Hello, there!

Run (local SPM)

If you have Swift locally:

swift build
swift test
swift run